參數(shù)資料
型號: LTC4242CUHF#TRPBF
廠商: Linear Technology
文件頁數(shù): 13/24頁
文件大?。?/td> 350K
描述: IC CNTRLR HOT SWAP 38-QFN
標準包裝: 2,500
類型: 熱交換控制器
應用: 通用型,PCI Express?
內(nèi)部開關:
電源電壓: 2.7 V ~ 6 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 38-WFQFN 裸露焊盤
供應商設備封裝: 38-QFN(5x7)
包裝: 帶卷 (TR)
LTC4242
13
4242f
When PRSNT2 pulls low after insertion of a board, the
ENn pin goes low after a delay as determined by the
values of C
D
 and R
D
. For plug-in debounce delay of 1ms
and R
D
 of 47k:
 
C
t
ms
D
DELAY
=
=
1
43 5
0 023
(   )
.
.
Choose C
D
 to be 33nF.
SYSTEM
BOARD
CONNECTOR
GOLD FINGERS
HOT PLUG
CONTROL
LOGIC
PULL-UP
PRSNT1
4242 F02
PRSNT2
SYSTEM BOARD
MATE LAST/BREAK FIRST
PCI EXPRESS ADD-IN CARD
TRACE ON THE ADD-IN CARD
(ACTUAL TRACE ROUTING IS LEFT
UP TO THE BOARD DESIGNER)
Figure 2. Plug-In Card Insertion/Removal
APPLICATIO  S I FOR  ATIO
U
U
U

+
9礎
LTC4242
V
OUT
OUT
GND
1.235V
C
D
33nF
R
D
47k
BD_PRSNT
ENn
4242 F03
CONNECTOR
MOTHERBOARD
PLUG-IN
CARD
LOAD
When the board is removed, the power to the slot is dis-
abled after a delay of:
 
t
C
s
ms
DELAY
D
2
0 765
9
2 8
=
=
.
.
Turn-On Sequence
The PCI Express power supplies are controlled by the
external N-channel pass transistors, Q1 through Q4, in the
12V and 3.3V power paths, and internal pass transistors
Figure 3. RC Network to Generate Delay During Card Plug-In
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相關代理商/技術參數(shù)
參數(shù)描述
LTC4242IG 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Slot Hot Swap Controller for PCI Express
LTC4242IG#PBF 功能描述:IC CNTRLR HOT SWAP 36-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:119 系列:- 類型:熱交換控制器 應用:通用型,PCI Express? 內(nèi)部開關:無 電流限制:- 電源電壓:3.3V,12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應商設備封裝:80-TQFP(12x12) 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4242IG#TRPBF 功能描述:IC CNTRLR HOT SWAP 36-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:119 系列:- 類型:熱交換控制器 應用:通用型,PCI Express? 內(nèi)部開關:無 電流限制:- 電源電壓:3.3V,12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應商設備封裝:80-TQFP(12x12) 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4242IUHF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Slot Hot Swap Controller for PCI Express
LTC4242IUHF#PBF 功能描述:IC CTRLR HOTSWAP DUAL-SLOT 38QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:119 系列:- 類型:熱交換控制器 應用:通用型,PCI Express? 內(nèi)部開關:無 電流限制:- 電源電壓:3.3V,12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應商設備封裝:80-TQFP(12x12) 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)